Fujitsu MAN3735 Manual De Usuario

C141-E124-01EN

3 - 84

Also, the size of the range where access is permitted, specified in this command in the "Block
count" field in the CDB, specifies the number of logical data blocks from that starting point.
However, when zero is specified in the "Block count" field, access to the final logical data block of
the specified data space (User Space or CE Space), with the logical data block specified in the
"Logical block address" field as the starting point, is permitted.  Figure 3.12 shows the method for
specification of the range where access is permitted in this command.

n+m

n–1

n+m+1

 m:  Value specified in the "Block count" field

Range where access is permitted by linked commands

n

n+3

n+2

n+1

n:  Value specified in the "Logical block address" field

If "1" is specified in bit 1 of CDB byte 1, "RdInh (read inhibit)" flag or in bit 0, "WrInh (write
inhibit) flag, read operations or write operations is prohibited for linked commands following this
command, as shown below.

RdInh

WrInh

Operation limits

0

0

Read/write operations are permitted in the specified range.

0

1

Read operations only are permitted in the specified range.

1

0

Write operations only are permitted in the specified range.

1

1

Both read and write operations are prohibited.  Only access by the SEEK
and SEEK EXTENDED commands is permitted within the specified range.